stepper_motor/smoothieware/README

   1 -------------------------------------------------------------------------------
   2 Smoothieware stepper motor signals
   3 -------------------------------------------------------------------------------
   4
   5 This is a capture of Smoothieware stepper signals while running the test.gcode.
   6
   7 Details:
   8 http://smoothieware.org/
   9 http://essentialscrap.com/tips/arm_trace/smoothie.html
  10
  11
  12 Logic analyzer setup
  13 --------------------
  14
  15 The logic analyzer used was an FX2 based device (at 24MHz):
  16
  17   Probe       Target
  18   ------------------
  19   0           ARM ITM trace (irrelevant)
  20   3           Y axis step
  21   4           Y axis direction
  22   5           X axis step
  23   6           X axis direction
  24
  25
  26 Data
  27 ----
  28
  29 Command to decode X axis position:
  30
  31   sigrok-cli -i smoothieware.sr \
  32              -P stepper_motor:step=5:dir=6:unit=mm:steps_per_mm=80.0
  33
  34 (though steps_per_mm doesn't currently work in sigrok-cli)
  35